So my 6.0 has 39,000 miles on it and just in the last 3-4 weeks I've noticed after the truck sits all night, no matter what the temperature outside is, it takes 2 times of about 10-15 seconds of cranking on it before it will start when it finally starts I get a decent plume of white smoke and it runs as smooth as it did when it was new. Then it will start and run like normal throughout the day....even after sitting 8 hrs in the parking lot at work it still starts fine. The batteries had never been replaced and I thought maybe they were draining a bit overnight having an effect on the FICM, since they were so old I replaced them and it didn't help out the hard starting issue...but they were due so oh well I guess. Am going to have it scanned by a diesel tech on Friday but figured I would see if anyone else had any ideas.
The only thing that has been replaced on the truck was the EGR cooler replaced by ford. I know the STC fitting hasn't been updated and plan on putting on the screw in fitting replacement....outside of that stuff I'm not sure what else to look at.

My father in laws buddy is a diesel specialist and I am hopefully going to be hooking up to his scanner tomorrow...I am suspecting a leak in the high pressure oil system. I know the STC fitting hasn't been updated so I picked one of the kits up at ford and am planning on doing that regardless.

05 should have the updated pipes and plugs, 03 and 04 were the main ones with those issues. I would lean more on the side of cold stiction. My 07 did the same thing till I replaced the injectors. Now ive learned of dome oil additives that help with the issue. Not gonna name a specific one because everyone has there opinions but I've found archoil 9100 and rev x to be the most common ones used. Try YouTube and watch the videos. 30-60 dollars could save you the 1400 I spent.

Scanner says.......glow plug control module...New module installed and codes cleared...we'll try her out in the morning. I run Rotella T6 synthetic and the truck loves it. Right before I switched to the synthetic my truck started showing signs of injector stiction with rough running after cold start, now it purrs as soon as it fires up no matter how cold it is.

05 should have the updated pipes and plugs, 03 and 04 were the main ones with those issues. I would lean more on the side of cold stiction. My 07 did the same thing till I replaced the injectors. Now ive learned of dome oil additives that help with the issue. Not gonna name a specific one because everyone has there opinions but I've found archoil 9100 and rev x to be the most common ones used. Try YouTube and watch the videos. 30-60 dollars could save you the 1400 I spent.

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